function::set_user_int - Linux
Overview
function::set_user_int assigns a value to a polynomial coefficient using the polynomial module.
Syntax
function::set_user_int(Array $coeff, int $pos, int $value) : void
Options/Flags
| Option | Description |
|—|—|
| $coeff | Array of coefficients |
| $pos | Position of the coefficient to set |
| $value | Value to set the coefficient to |
Examples
Setting a specific coefficient in a polynomial:
use function Polynomial\set_user_int;
$coeff = [1, 2, 3];
set_user_int($coeff, 1, 4);
After executing the code, $coeff
will be [1, 4, 3]
.
Setting multiple coefficients in a polynomial:
use function Polynomial\set_user_int;
$coeff = [1, 2, 3];
set_user_int($coeff, [0, 2], [5, 7]);
After executing the code, $coeff
will be [5, 2, 7]
.
Common Issues
- Invalid position: If
$pos
is less than 0 or greater than the length of the polynomial, an exception will be thrown. - Invalid value: If
$value
is not an integer, an exception will be thrown.
Integration
The function::set_user_int function can be used with other polynomial functions to perform various operations on polynomials. For example, it can be used to:
- Add two polynomials together using the function::add function.
- Multiply two polynomials together using the function::mul function.
- Evaluate a polynomial at a given point using the function::eval function.
Related Commands
- function::get_user_int – Gets the value of a polynomial coefficient.
- polynomial – A PHP module for working with polynomials.
- polyval – Built-in PHP function to evaluate a polynomial.